Improved alloy of aluminum



UNITED STATES PATENT OFFICE.

MOSES G. FARMER, OF SALEM, MASSACHUSETTS.

IMPROVED ALLOY OF ALUMlNUlVlr Specification forming part of Letters Patent No. 44,086. dated September 6, 186' .To all whom it may concern:

Be it known that I, MOSES G. FARMER, of Salem, in the connty ot' Essex and State of .Massachusctts, have invented an Improved Aluminum Alloy; and I do hereby declare that the following is a description of my iiivontion suflicient to enable those skilled in the art to practice it.

In the United States Letters Patent No.

38,.301, granted to me Apiil 28, 1863, for inn proved alloys of aluminum, I therein described alloys in which the proportion of copper varied from eighty to ninety-eight per cent. of

the whole alloy, and in which the aluminum and other light-colored metals formed from twenty to two per cent. of the whole alloy, the

proportion of the aluminum to the whole quantity of light-colored metals use'd varyingfrom ten to ninety-live per cent My present invention consists of an alloy not within the range of those included in my said patent. Said alloy is useful in that,

among other uses, it is particularly adapted for formation into and for use as nails; and it consists in a. mixture in which the copper therein may vary from sixty-five to eighty percent. of the whole, and the light-colored metals therein from thirty-five to twenty per cent. of

results from making up the whole quantity-of the light-colored metals in the following pro portions, viz: ninety-one and six-tenths per.

cent. of zinc, six and seven-tenths per cent. of

cast-steel, one and seven-tenths per cent. of aluminum.

I claim-- The alloy compounded of the metals and in the proportion substantial] as specified.

In witness whereof I have hereunto set my hand this 19th day of April, A. I). 18651..

MOSES G. FARMER.

In presence-of- J. B. CROSBY, F. GOULD. 

